Metal fly-screen.



B. T. BURROWES.

METAL FLY SCREEN.

APPLICATION FILED SEPT.28, 191s.

Patented Dec. 15, 1914.

THE MORRIS PD) 1.0.. rnmurnll. umsnlucwlv. n C

STATES FATE .1

QFFTCE.

EDWARD T. IBURROWES, OF PORTLAND, MAINE.

METAL FLY-SCREEN.

Application filed September 23, 1913. Serial No. 791,339.

To all whom it may concern Be it known that I, EDWARD T. BUR- nowrs,citizen of the United States, residing at Portland, in the county ofCumberland and State of Maine, have invented certain new and usefulImprovements in Metal F ly-Screens, of which the following is aspecification.

This invention relates to metal fly screens, and more particularly tomeans for holding such screens in position in a window frame.

As heretofore constructed, metal screens of the type in question haveusually been arranged to slide in metal channel-shaped guide-wayssecured to the inside of a window frame, while wooden frame screens areusually provided with a groove adapted to take over a guide-rail securedto the window frame. As theuse of a wooden guiderail of this kindpresents advantages over the use of a metal channel, it is one object ofthe present invention to provide an al metal screen so constructed as tocooperate with the usual wooden guide-rail.

A further object of the invention is to PI'OVifiG guiding means for ascreen which will make it possible to adjust the screen to windows ofslightly different widths, or to windows the frames of which are notaccurately square.

In order that the invention may be understood, reference is had to theaccompanying drawing, forming a part of this specification, and inwhich, Figure 1 is an elevation of a metal fly screen constructed inaccordance with my invention, parts being broken away; Fig. 2 is ahorizontal section through the same, also showing a guide-railcooperating therewith; Fig. 3 is a transverse section through one sideof a screen, showing a sli htly modified arrangement; Fig. 4 is asimilar view, showing a still further modification; Fig. 5 is afragmentary longitudinal section through one of my improved guide-ways;Fig. 6 is a transverse section through a metal *uiderail which I mayemploy; and, Fig. I is a transverse section through one side of a screenframe, showing a construction which may be employed in place of thatillustrated in Figs. 1 and 9.

Referring to the drawing in detail, 1 designates a metal screen frame,which may be of any suitable construction, but which is shown as of thetype illustrated in the copending application of George H. Davis, SerialNo. 787,694, filed Sept. 2, 1913.

2 designates a wire holding molding of the kind shown in suchapplication, while 3 deslgnates my improved molding which forms one ofthe features of the present invention. As clearly shown in Fig. 2, thismolding, after passing around the screen frame, is bent backwardly uponitself, as indicated at 5, so as to form a guide-way or channel at. Theends of the bent back portlon 5 are prolonged beyond the molding proper,as indicated at 5 in Fig. 1, so as to extend the entire height of theframe. This channel L, it will be seen, lies at one side of the plane ofthe screen, and is adapted to engage a guide-rail 6, which may besecured to the window frame by means of nails or similar fastenings. Inthe channel 4 is located one or more leaf springs 7, as clearly shown inFig. 5, one end of such springs being securedto the bottom of thechannel, as by means of a rivet 8. These springs are similar to thosecommonly used in connection with wooden frame screens and are for thesame purpose, namely, to maintain the opposite edge of the screen inengagement with the guiding means.

At the side of the screen opposite the molding 3 and channel 4: is theguiding means which I prefer to employ, comprising a strip 9 extendingsubstantially throughout the length of the screen. This strip is locatedat one side of the screen and is preferably secured thereto by means ofscrews or similar fastenings 10, working in transverse slots 11, formednear each end of the strip. By means of these slots it will be seen thatthe position of the strip relative to the frame can be adjusted, and theextent to which the strip projects beyond the frame regulated. By thismeans it is quite possible to adapt any given screen to windows ofslightly varying widths and in case the window frame should be slightlywider at one place than another, the strip 9 can be adjusted so as toproject somewhat farther at one end than at the other. In this way, atight fit can always be secured and all cracks or openings eliminated,especially at the bottom of the screen on the window sill.

The outer edge of the strip 9 is adapted to work in a groove formed in aguide-rail 12, preferably made of wood. As indicated in Fig. 6, however,a guide-rail 13 may be employed for this purpose, such rail being formedof sheet metal folded upon itself at separated points, 1%15, so as toform a channel or groove 16 for the reception of the strip 9.

While the construction shown at the left of Fig. 2 possesses manyadvantages, I may, in some cases, provide this side of the screen withguiding means of the same nature as that with which the opposite side.is equipped. By reference to Fig. 7, it'will be seen that I may attach achannel-shaped guide member 18 to the frame and provide a guide-rail 19,with which such guidemember may engage. It will, of course, beunderstood that the channel'shaped member 18 is of considerably lessdepth than the channel 4, at the opposite side of the screen, sucharrangement being well known in the wooden screens now in common use.The purpose of this is to permit the screen to be pressed toward theright, compressing spring 7 until channel 18 clears the rail 19, whenthe screen may be readily removed.

Instead of forming the channel 4 integral with the molding 3, I mayprovide the usual molding 3, as illustrated in Fig. 3, and securethereto, as by rivets, a separate channel-shaped member 17 which, ofcourse, eX- tends the entire height of the screen.

In Fig. 4, I have illustrated a molding 3", adapted to embrace arabbeted frame 1' of the kind shown in the Davis application abovementioned, and bent backward upon itself at 5 to form a channel-shapedguide-Way 1. It will, of course, be understood that the guide-Way may beof a depth equal to the Width of the frame, as shown in Fig. 4, or itmay be of less depth as illustrated in Fig. 2. In other words, themolding may be bent back upon itself at any Copies of this patent maybeobtained for five cents each, by addressing the suitable point whatever,so as to form a channel of any desired depth.

It will therefore be seen that I have provided simple and inexpensivemeans for guiding metal frame screens in the same manner as Wooden framescreens, and further, that I have provided means for adjusting a rigidframe screen so as to fit Windows of slightly varying idths, and it istho'ughtthat the many advantages of these features will be readilyappreciated without further discussion.

WVhat I claim is: I

1. In a fly screen, a rigid frame, a wire holding molding embracing saidframe, and a channel-shaped guide-way carried by said molding, the wallsof the channel being parallel with the adjacent face of the mold- -ing,and. the channel opening outwardly.

' 2. In a fly screen, a rigid frame comprlsing sidebars, and a wireholding molding embracing one of said side bars, the edge of suchmolding being bent back parallel with itself at one side of the frame toform an outwardly opening channel-shaped guide- Way.

3. In a fly screen, a rigid frame, a guide channel secured to the sideof theframe ad jacent one edge, the walls of the channel lying parallelwith such frame, and an adjustable guide strip secured to the side ofthe frame adjacent the opposite edge, and projecting therebeyond in aparallel plane. In testimony whereof I have afi'ixed my signature, inpresence of two witnesses.

EDWARD T. BURROWES.

Witnesses: IDA F. MCNAIRN, ALICE M. GURNEY.

Commissioner of Yatents,

Washington, D. G.

